Mobile wedge prier



y 15, 1951 I s. v. READ 2,553,112

MOBILE WEDGE PRIER Filed June 6, 1947 E ugene I/. Read INVENTOR.

BY QM WW /19M Patented May 15, 1951 UNITED STATES PATENT OFFICE 2Claims.

This invention relates to novel and useful improvements in wedge pryersparticularly adapted to be used in grip-ping certain elements which arejammed or otherwise difficult to remove.

An object of this invention is to provide means, selectivelypositionable, for affecting a protuberance which is to be utilized as afulcrum in the operation of a wedge or pryer bar.

Another object of this invention is to provide extremely simple meansfor retaining the fulcrum means within the bar.

Another object of this invention is to provide a rod slidablypositionable on a bar which has received therein a fulcrum means whichis also selectively positionable relative to the said rod.

A further object of the present invention is to provide a device whichis as simple as possible to manufacture and which requires but a minimumof moving parts.

Another object of this invention is to provide an extremely practicaland efficient pryer bar which is useful in many environments.

Other objects and features of novelty shall become apparent to thoseskilled in the art, in following the description of the preferredembodiment of the present invention, illustrated in the accompanyingdrawings, wherein:

Figure 1 is an elevational side view of the present invention;

Figure 2 is a perspective View of a modified fulcrum member;

Figure 3 is a perspective view of another fulcrum member, and;

Figure 4 is a perspective view of another fulcrum member.

This invention has been conceived and developed to provide a device forfacilitating the labor involved in prying objects loose from theirmoorings.

When a tool which has an elongated bar or shank, for example, a screwdriver 25, is utilized in electricians work, mechanics work and anyother types of labor, it often happens that for need for a better tool,the screw driver is used as a prying .device. Accordingly, in order toattain greater leverage the invention as disclosed in Figure 1 may beused to cope with the necessity of additional leverage. It is understoodhowever that the invention may be utilized in environments other thanelectricians work, mechanical work and the like.

There is a bar having a longitudinal axis, constituting a part of thescrew driver 25. This bar or shank has a handle 34 at its upper end, thehandle and shank being standard.

A rod 38 is slidably disposed on the bar If] and is held secured theretoby meansof the illustrated apertured brackets, which constitute bearingmembers 40. The bearing members are fixed to the rod 38 and the bar itis passed through the apertures in said bearing members.

There is a longitudinal dovetail slot 42 provided in the rod 38 parallelto the longitudinal axis thereof. This dovetail slot is adapted toaccommodate a selected one of the fulcrum members I6, 20 and 22. Thesefulcrum members are each provided with tongues l8, so shaped as to fitin the dovetail slot 42.

The fulcrum member I6 is provided with a smoothly curved surface, whilethe fulcrum member 20 is of wedge shape. The fulcrum member 22 isrectangular, each of these fulcrum members being usable in accordancewith the prerogative of the person who is using the tool 25.

In operation the rod 38 may be slid on the bar In and moreover, thefulcrum member located in the dovetail slot 42 may be slid parallel tothe longitudinal axis of the bar Ill and the rod 38. By this action thefulcrum is moved in accordance with desires of the user of the device.

Having described the invention, what is claimed as new is:

1. In a leverage device, an elongated bar, a rod, means slidablysecuring said rod to said bar, said rod having a longitudinal slottherein which is parallel to the longitudinal axis of said elongatedbar, a fulcrum member slidably disposed in said slot, said slot havingdovetail edges, and complemental dovetail edges on said fulcrum memberengaged in said first mentioned dovetail edges.

2. In a leverage device, an elongated bar with a handle portion at oneend, and a work portion at the other end, a rod having bearing membersfixed thereto, said bearing members being slidably disposed on said barspacing said rod from said bar, said rod having a longitudinal slottherein which is parallel to the longitudinal axis of the bar, and afulcrum member slidably disposed in said slot.

EUGENE V. READ.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 137,333 Terhune Apr. 1, 1873541,531 Graves et a1. June 25, 1895 1,554,518 Ostrander Sept. 22, 19252,049,489 Christen Aug. 4, 1936

